diff --git a/_posts/history/2020-01-02-personal-data-2010-15.md b/_posts/history/2020-01-02-personal-data-2010-15.md
index 15d2737f..2d209477 100644
--- a/_posts/history/2020-01-02-personal-data-2010-15.md
+++ b/_posts/history/2020-01-02-personal-data-2010-15.md
@@ -7,6 +7,8 @@ excerpt: >
 layout: single
 permalink: '/history/2010-2014/'
 tags: ["Jolocom", "Trust Framework", "Credentials Community Group", "Bitcoin", "IndieAuth", "OAuth", "IBM", "FIDO", "Danube Tech","WebAuthN","Respect Network","W3C","XDI","Microsoft","California"]
+header:
+  teaser: /images/handshake-pickpik.webp
 categories: ["History"]
 last_modified_at: 2020-01-04
 ---
diff --git a/_posts/history/2020-01-03-blockchain-2015-19.md b/_posts/history/2020-01-03-blockchain-2015-19.md
index dd83779a..b95e115e 100644
--- a/_posts/history/2020-01-03-blockchain-2015-19.md
+++ b/_posts/history/2020-01-03-blockchain-2015-19.md
@@ -9,6 +9,7 @@ excerpt: >
 header:
   image: /images/sdg-16-peace-justice-strong-institutions.webp
   caption: "[Promote just, peaceful and inclusive societies](https://changemakerson.eu/sdg16-peace-justice-and-strong-institutions/)"
+  teaser: /images/sustainable-development-goal-16.webp
 layout: single
 permalink: /history/2015-2019/
 categories: ["History"]
diff --git a/images/handshake-pickpik.webp b/images/handshake-pickpik.webp
new file mode 100644
index 00000000..96f27371
Binary files /dev/null and b/images/handshake-pickpik.webp differ
diff --git a/images/sustainable-development-goal-16.webp b/images/sustainable-development-goal-16.webp
new file mode 100644
index 00000000..83735cb9
Binary files /dev/null and b/images/sustainable-development-goal-16.webp differ